An Integrated ‘Living’ 3D Database Using Photogrammetry and GIS: Trenches B and H from Early Bronze Age Dhaskalio, Greece

The analytical function of 3D data beyond visualisation and aesthetics has been a well-discussed issue in archaeological literature. Several recent projects have proposed case studies and workflows that implement three-dimensional data in 3D GIS software, yet few have truly utilised 3D modelling as a valued part of the analytical process. This begs the question, is there an added value of 3D approaches over traditional GIS, and what kinds of analytical possibilities does 3D documentation provide? This project aims to address these questions by integrating all available site datasets in a single, ‘living’ 3D GIS database which can be accessed and edited either in the ‘back end’ SQL database or the ‘front end’ 3D GIS. Furthermore, this project integrates 3D models created by structure-from-motion photogrammetry and establishes a number of useful analytical tools for working with three-dimensional spatial data, such as using artefact clusters to determine the function of space, and to...Show moreThe analytical function of 3D data beyond visualisation and aesthetics has been a well-discussed issue in archaeological literature. Several recent projects have proposed case studies and workflows that implement three-dimensional data in 3D GIS software, yet few have truly utilised 3D modelling as a valued part of the analytical process. This begs the question, is there an added value of 3D approaches over traditional GIS, and what kinds of analytical possibilities does 3D documentation provide? This project aims to address these questions by integrating all available site datasets in a single, ‘living’ 3D GIS database which can be accessed and edited either in the ‘back end’ SQL database or the ‘front end’ 3D GIS. Furthermore, this project integrates 3D models created by structure-from-motion photogrammetry and establishes a number of useful analytical tools for working with three-dimensional spatial data, such as using artefact clusters to determine the function of space, and to comment on the taphonomic processes of the site. This project introduces the workflow for a fully integrated, interoperable database using 3D GIS, whereby three-dimensional data can be stored, viewed, and analysed alongside traditional GIS components and relevant site data such as (but by no means limited to) photographs, published related literature, and field notes. The project utilises the data from trenches B and H at Dhaskalio, Greece, excavated between 2016 and 2018. This site presented an ideal case study for the incorporation of 3D models as the project aimed to use an entirely digital recording system with photogrammetric models taken of every stratigraphic layer excavated and each architectural feature on site. This approach presents an advantageous use of 3D data in the intra-site interpretation processes.Show less

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An Integrated ‘Living’ 3D Database Using Photogrammetry and GIS: Trenches B and H from Early Bronze Age Dhaskalio, Greece